Narrative
The upper half of the spike appears to be six-rowed, but the lateral spikelets in the lower half are reduced in size with the basal portion being two-rowed. Awns on the lateral spikelets range from normal near the top, to awnletted or pointed in the middle, to awnless at the base of the spike. Lateral spikelets set seed only in the upper two-thirds of the spike. Lateral spikelets may be pedicellated in some stocks. Central spikelets often have double awn, one on the lemma and one on the palea. The rachilla may be deformed. Inheritance: Monofactorial recessive. Located in chromosome 1HL [5L]; near the centromere and proximal from the ert-b (erectoide-b) locus. Previous nomenclature and gene symbolization: Six-rowed spike 3=v3. Intermedium spike-a=int-1. Intermedium spike-g=int-g. Mutational events: vrs3.f in Hakata 2 (Kmut 213, OUM292), vrs3.g (Xb 388.8, Piro-1), vrs3.h (Xd 160.46, Piro-3), vrs3.i (X15 1463, Piro-5), vrs3.j (X17 3555, Piro-8) in Piroline (PI 539132); int-a.1 in Bonus (PI 189763); int-a.2 in Bonus; int-a.8, -a.9, -a.10, -a.64 in Bonus, -a.14, -a.17, -a.21, -a.27, -a.30, -a.31, -a.32, -a.34, -a.35, -a.37 in Foma (CIho 11333), -a.46, -a.51, -a.52, -a.54, -a.55, -a.59, -a.61 in Kristina; int-a.71, -a.74, -a.77, -a.79, -a.86, -a.88 in Bonus, -a.102, -a.103 in Hege. Mutant used for description and seed stocks: vrs3.f in Hakata 2 (GSHO 774); int-a.1 in Bonus (GSHO 170); vrs3.f in Bowman (PI 483237)*7 (GSHO 2056); int-a.1 in Bowman*5 (GSHO 2055).